Stylized male character anatomy practice

A new male character sculpting practice, the main purpose is to get a better understanding of muscles or anatomy. I sculpted and rendered this character in ZBrush, and tried to use 2D shader to get a Japanese anime feeling. Hope you like the it.
I found the reference image on Pinterest, I don't know who the author is. here is the link of this reference image https://www.pinterest.com/pin/532269249729261404/